476 lines
9.7 KiB
C
476 lines
9.7 KiB
C
/*
|
|
*
|
|
* ===================================
|
|
* HARP | Host ATM Research Platform
|
|
* ===================================
|
|
*
|
|
*
|
|
* This Host ATM Research Platform ("HARP") file (the "Software") is
|
|
* made available by Network Computing Services, Inc. ("NetworkCS")
|
|
* "AS IS". NetworkCS does not provide maintenance, improvements or
|
|
* support of any kind.
|
|
*
|
|
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
|
|
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
|
|
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
|
|
* In no event shall NetworkCS be responsible for any damages, including
|
|
* but not limited to consequential damages, arising from or relating to
|
|
* any use of the Software or related support.
|
|
*
|
|
* Copyright 1994-1998 Network Computing Services, Inc.
|
|
*
|
|
* Copies of this Software may be made, however, the above copyright
|
|
* notice must be reproduced on all copies.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* User Space Library Functions
|
|
* ----------------------------
|
|
*
|
|
* IOCTL subroutines
|
|
*
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sockio.h>
|
|
#include <net/if.h>
|
|
#include <netinet/in.h>
|
|
#include <netatm/port.h>
|
|
#include <netatm/atm.h>
|
|
#include <netatm/atm_if.h>
|
|
#include <netatm/atm_sap.h>
|
|
#include <netatm/atm_sys.h>
|
|
#include <netatm/atm_ioctl.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "libatm.h"
|
|
|
|
#ifndef TRUE
|
|
#define TRUE 1
|
|
#endif
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#endif
|
|
|
|
extern char *prog;
|
|
|
|
|
|
/*
|
|
* Issue an informational IOCTL
|
|
*
|
|
* The user fills out the opcode and any subtype information. This
|
|
* routine will allocate a buffer and issue the IOCTL. If the request
|
|
* fails because the buffer wasn't big enough, this routine will double
|
|
* the buffer size and retry the request repeatedly. The buffer must
|
|
* be freed by the caller.
|
|
*
|
|
* Arguments:
|
|
* req pointer to an ATM information request IOCTL structure
|
|
* buf_len length of buffer to be allocated
|
|
*
|
|
* Returns:
|
|
* -1 error encountered (reason in errno)
|
|
* int length of the returned VCC information
|
|
*
|
|
*/
|
|
int
|
|
do_info_ioctl(req, buf_len)
|
|
struct atminfreq *req;
|
|
int buf_len;
|
|
{
|
|
int rc, s;
|
|
caddr_t buf;
|
|
|
|
/*
|
|
* Open a socket for the IOCTL
|
|
*/
|
|
s = socket(AF_ATM, SOCK_DGRAM, 0);
|
|
if (s < 0) {
|
|
return(-1);
|
|
}
|
|
|
|
/*
|
|
* Get memory for returned information
|
|
*/
|
|
mem_retry:
|
|
buf = (caddr_t)UM_ALLOC(buf_len);
|
|
if (buf == NULL) {
|
|
errno = ENOMEM;
|
|
return(-1);
|
|
}
|
|
|
|
/*
|
|
* Set the buffer address and length in the request
|
|
*/
|
|
req->air_buf_addr = buf;
|
|
req->air_buf_len = buf_len;
|
|
|
|
/*
|
|
* Issue the IOCTL
|
|
*/
|
|
rc = ioctl(s, AIOCINFO, (caddr_t)req);
|
|
if (rc) {
|
|
UM_FREE(buf);
|
|
if (errno == ENOSPC) {
|
|
buf_len = buf_len * 2;
|
|
goto mem_retry;
|
|
}
|
|
return(-1);
|
|
}
|
|
(void)close(s);
|
|
/*
|
|
* Set a pointer to the returned info in the request
|
|
* and return its length
|
|
*/
|
|
req->air_buf_addr = buf;
|
|
return(req->air_buf_len);
|
|
}
|
|
|
|
|
|
/*
|
|
* Get VCC information
|
|
*
|
|
* Arguments:
|
|
* intf pointer to interface name (or null string)
|
|
* vccp pointer to a pointer to a struct air_vcc_rsp for the
|
|
* address of the returned VCC information
|
|
*
|
|
* Returns:
|
|
* int length of the retuned VCC information
|
|
*
|
|
*/
|
|
int
|
|
get_vcc_info(intf, vccp)
|
|
char *intf;
|
|
struct air_vcc_rsp **vccp;
|
|
{
|
|
int buf_len = sizeof(struct air_vcc_rsp) * 100;
|
|
struct atminfreq air;
|
|
|
|
/*
|
|
* Initialize IOCTL request
|
|
*/
|
|
air.air_opcode = AIOCS_INF_VCC;
|
|
UM_ZERO(air.air_vcc_intf, sizeof(air.air_vcc_intf));
|
|
if (intf != NULL && strlen(intf) != 0)
|
|
strcpy(air.air_vcc_intf, intf);
|
|
|
|
buf_len = do_info_ioctl(&air, buf_len);
|
|
|
|
/*
|
|
* Return a pointer to the VCC info and its length
|
|
*/
|
|
*vccp = (struct air_vcc_rsp *) air.air_buf_addr;
|
|
return(buf_len);
|
|
}
|
|
|
|
|
|
/*
|
|
* Get subnet mask
|
|
*
|
|
* Arguments:
|
|
* intf pointer to an interface name
|
|
* mask pointer to a struct sockaddr_in to receive the mask
|
|
*
|
|
* Returns:
|
|
* 0 good completion
|
|
* -1 error
|
|
*
|
|
*/
|
|
int
|
|
get_subnet_mask(intf, mask)
|
|
char *intf;
|
|
struct sockaddr_in *mask;
|
|
{
|
|
int rc, s;
|
|
struct ifreq req;
|
|
struct sockaddr_in *ip_mask;
|
|
|
|
/*
|
|
* Check parameters
|
|
*/
|
|
if (!intf || !mask ||
|
|
strlen(intf) == 0 ||
|
|
strlen(intf) > IFNAMSIZ-1)
|
|
return(-1);
|
|
|
|
/*
|
|
* Open a socket for the IOCTL
|
|
*/
|
|
s = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (s < 0)
|
|
return(-1);
|
|
|
|
/*
|
|
* Set up and issue the IOCTL
|
|
*/
|
|
UM_ZERO(&req, sizeof(req));
|
|
strcpy(req.ifr_name, intf);
|
|
rc = ioctl(s, SIOCGIFNETMASK, (caddr_t)&req);
|
|
(void)close(s);
|
|
if (rc)
|
|
return(-1);
|
|
|
|
/*
|
|
* Give the answer back to the caller
|
|
*/
|
|
ip_mask = (struct sockaddr_in *)&req.ifr_addr;
|
|
*mask = *ip_mask;
|
|
mask->sin_family = AF_INET;
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Get an interface's MTU
|
|
*
|
|
* Arguments:
|
|
* intf pointer to an interface name
|
|
* mtu pointer to an int to receive the MTU
|
|
*
|
|
* Returns:
|
|
* >= 0 interface MTU
|
|
* -1 error
|
|
*
|
|
*/
|
|
int
|
|
get_mtu(intf)
|
|
char *intf;
|
|
{
|
|
int rc, s;
|
|
struct ifreq req;
|
|
|
|
/*
|
|
* Check parameters
|
|
*/
|
|
if (!intf || strlen(intf) == 0 ||
|
|
strlen(intf) > IFNAMSIZ-1)
|
|
return(-1);
|
|
|
|
/*
|
|
* Open a socket for the IOCTL
|
|
*/
|
|
s = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (s < 0)
|
|
return(-1);
|
|
|
|
/*
|
|
* Set up and issue the IOCTL
|
|
*/
|
|
UM_ZERO(&req, sizeof(req));
|
|
strcpy(req.ifr_name, intf);
|
|
rc = ioctl(s, SIOCGIFMTU, (caddr_t)&req);
|
|
(void)close(s);
|
|
|
|
/*
|
|
* Set the appropriate return value
|
|
*/
|
|
if (rc)
|
|
return(-1);
|
|
else
|
|
return(req.ifr_mtu);
|
|
}
|
|
|
|
|
|
/*
|
|
* Verify netif name
|
|
*
|
|
* This routine issues an IOCTL to check whether the passed string is
|
|
* a valid network interface name.
|
|
*
|
|
* Arguments:
|
|
* req pointer to an ATM information request IOCTL structure
|
|
*
|
|
* Returns:
|
|
* -1 error encountered
|
|
* FALSE (0) the string is not a NIF name
|
|
* TRUE (> 0) the string is a valid NIF name
|
|
*
|
|
*/
|
|
int
|
|
verify_nif_name(name)
|
|
char *name;
|
|
{
|
|
int rc, s;
|
|
struct atminfreq air;
|
|
struct air_netif_rsp *nif_info;
|
|
|
|
/*
|
|
* Check whether name is of a valid length
|
|
*/
|
|
if (strlen(name) > IFNAMSIZ - 1 ||
|
|
strlen(name) < 1) {
|
|
return(FALSE);
|
|
}
|
|
|
|
/*
|
|
* Open a socket for the IOCTL
|
|
*/
|
|
s = socket(AF_ATM, SOCK_DGRAM, 0);
|
|
if (s < 0) {
|
|
return(-1);
|
|
}
|
|
|
|
/*
|
|
* Get memory for returned information
|
|
*/
|
|
nif_info = (struct air_netif_rsp *)UM_ALLOC(
|
|
sizeof(struct air_netif_rsp));
|
|
if (nif_info == NULL) {
|
|
errno = ENOMEM;
|
|
return(-1);
|
|
}
|
|
|
|
/*
|
|
* Set up the request
|
|
*/
|
|
air.air_opcode = AIOCS_INF_NIF;
|
|
air.air_buf_addr = (caddr_t)nif_info;
|
|
air.air_buf_len = sizeof(struct air_netif_rsp);
|
|
UM_ZERO(air.air_netif_intf, sizeof(air.air_netif_intf));
|
|
strcpy(air.air_netif_intf, name);
|
|
|
|
/*
|
|
* Issue the IOCTL
|
|
*/
|
|
rc = ioctl(s, AIOCINFO, (caddr_t)&air);
|
|
UM_FREE(nif_info);
|
|
(void)close(s);
|
|
|
|
/*
|
|
* Base return value on IOCTL return code
|
|
*/
|
|
if (rc)
|
|
return(FALSE);
|
|
else
|
|
return(TRUE);
|
|
}
|
|
|
|
/*
|
|
* Get Config information
|
|
*
|
|
* Arguments:
|
|
* intf pointer to interface name (or null string)
|
|
* cfgp pointer to a pointer to a struct air_cfg_rsp for the
|
|
* address of the returned Config information
|
|
*
|
|
* Returns:
|
|
* int length of returned Config information
|
|
*
|
|
*/
|
|
int
|
|
get_cfg_info ( intf, cfgp )
|
|
char *intf;
|
|
struct air_cfg_rsp **cfgp;
|
|
{
|
|
int buf_len = sizeof(struct air_cfg_rsp) * 4;
|
|
struct atminfreq air;
|
|
|
|
/*
|
|
* Initialize IOCTL request
|
|
*/
|
|
air.air_opcode = AIOCS_INF_CFG;
|
|
UM_ZERO ( air.air_cfg_intf, sizeof(air.air_cfg_intf));
|
|
if ( intf != NULL && strlen(intf) != 0 )
|
|
strcpy ( air.air_cfg_intf, intf );
|
|
|
|
buf_len = do_info_ioctl ( &air, buf_len );
|
|
|
|
/*
|
|
* Return a pointer to the Config info and its length
|
|
*/
|
|
*cfgp = (struct air_cfg_rsp *) air.air_buf_addr;
|
|
return ( buf_len );
|
|
|
|
}
|
|
|
|
/*
|
|
* Get Physical Interface information
|
|
*
|
|
* Arguments:
|
|
* intf pointer to interface name (or null string)
|
|
* intp pointer to a pointer to a struct air_cfg_rsp for the
|
|
* address of the returned Config information
|
|
*
|
|
* Returns:
|
|
* int length of returned Config information
|
|
*
|
|
*/
|
|
int
|
|
get_intf_info ( intf, intp )
|
|
char *intf;
|
|
struct air_int_rsp **intp;
|
|
{
|
|
int buf_len = sizeof(struct air_int_rsp) * 4;
|
|
struct atminfreq air;
|
|
|
|
/*
|
|
* Initialize IOCTL request
|
|
*/
|
|
air.air_opcode = AIOCS_INF_INT;
|
|
UM_ZERO ( air.air_int_intf, sizeof(air.air_int_intf));
|
|
if ( intf != NULL && strlen(intf) != 0 )
|
|
strcpy ( air.air_int_intf, intf );
|
|
|
|
buf_len = do_info_ioctl ( &air, buf_len );
|
|
|
|
/*
|
|
* Return a pointer to the Physical Interface info and its length
|
|
*/
|
|
*intp = (struct air_int_rsp *) air.air_buf_addr;
|
|
return ( buf_len );
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
* Get Netif information
|
|
*
|
|
* Arguments:
|
|
* intf pointer to interface name (or null string)
|
|
* netp pointer to a pointer to a struct air_netif_rsp for the
|
|
* address of the returned Netif information
|
|
*
|
|
* Returns:
|
|
* int length of returned Netif information
|
|
*
|
|
*/
|
|
int
|
|
get_netif_info ( intf, netp )
|
|
char *intf;
|
|
struct air_netif_rsp **netp;
|
|
{
|
|
int buf_len = sizeof(struct air_netif_rsp) * 10;
|
|
struct atminfreq air;
|
|
|
|
/*
|
|
* Initialize IOCTL request
|
|
*/
|
|
air.air_opcode = AIOCS_INF_NIF;
|
|
UM_ZERO ( air.air_int_intf, sizeof(air.air_int_intf) );
|
|
if ( intf != NULL && strlen(intf) != 0 )
|
|
strcpy ( air.air_int_intf, intf );
|
|
|
|
buf_len = do_info_ioctl ( &air, buf_len );
|
|
|
|
/*
|
|
* Return a pointer to the Netif info and its length
|
|
*/
|
|
*netp = (struct air_netif_rsp *) air.air_buf_addr;
|
|
return ( buf_len );
|
|
|
|
}
|
|
|
|
|